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Do minimal terminal mangling to prompt users for input
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Get a "confirmation" input from the user, for at most (timeout)
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timeout -- timeout to wait for input (default 120)
message -- optional customized message ("Press ENTER to (message)")
raises:
InputAccepted -- the user confirmed the changes
InputRejected -- the user rejected the changes
z%Do you want to keep these settings?
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Save the terminal's current attributes and flags
Optional argument:
- dest: if set, save settings to this dict
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Reset the terminal to its original attributes and flags
Optional argument:
- orig: if set, reset to settings from this dict
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